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<p>苏生不惑第167 篇原创文章，将本公众号设为<code>星标</code>，第一时间看最新文章。</p>
</blockquote>
<p>关于备份之前写过以下文章：</p>
<p><a href="https://mp.weixin.qq.com/s/AUS5oCukv8hIFZIjO2Drjg" target="_blank" rel="noopener">再谈备份微博</a></p>
<p><a href="https://mp.weixin.qq.com/s/PlkPDmK2SUdQT59CzOJFMA" target="_blank" rel="noopener">一键备份微博并导出生成PDF，顺便用Python分析微博账号数据</a></p>
<p><a href="https://mp.weixin.qq.com/s/BddM3RzStg0Qos9cSrQXIw" target="_blank" rel="noopener">再谈备份网页和公众号文章</a></p>
<p><a href="https://mp.weixin.qq.com/s/bIE23HBq_sqvLkV18_BlbQ" target="_blank" rel="noopener">如何备份可能被删的公众号文章和网页</a></p>
<p><a href="https://mp.weixin.qq.com/s/l2bQJk1qjb6IzroODBpoOg" target="_blank" rel="noopener">想看的公众号文章被删了怎么办？</a></p>
<p>上面写的备份公众号方法都是单篇备份，如果你想备份某个公众号的所有文章，就有点太麻烦了，所以今天分享的是用Python一键备份某个公众号的所有文章，这里就以我自己的<code>公众号苏生不惑</code>为例了，原理就是通过抓包抓取微信客户端的接口，用Python请求微信接口获取公众号文章链接再下载。</p>
<h3 id="charles-抓包"><a href="#charles-抓包" class="headerlink" title="charles 抓包"></a>charles 抓包</h3><p>常见的抓包工具有Fiddler，charles，这里用的charles，先去官网 <a href="https://www.charlesproxy.com/download" target="_blank" rel="noopener">https://www.charlesproxy.com/download</a> 下载软件,然后打开微信客户端找到公众号，进入文章列表可以看到发过的文章。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-91217817ab889f5d.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>不过charles没安装证书前获取不到https接口数据，显示unknown。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-d6323050d5a76412.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>安装证书后在 proxy-&gt;ssl proxying settings 添加域名和host 。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-f12ade2adea0aaf2.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>再次抓取可以看到公众号文章接口数据了。</p>
<p><img src="https://upload-images.jianshu.io/upload_images/23152173-bc7af8b0553b9c8d.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>公众号文章的接口地址 <a href="https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&amp;__biz=MjM5ODIzNDEx&amp;f=json&amp;offset=25&amp;count=10&amp;is_ok=1&amp;scene=124&amp;uin=MTU0MTQzNj&amp;key=f57423" target="_blank" rel="noopener">https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&amp;__biz=MjM5ODIzNDEx&amp;f=json&amp;offset=25&amp;count=10&amp;is_ok=1&amp;scene=124&amp;uin=MTU0MTQzNj&amp;key=f57423</a> ，参数比较多，其中有用的参数 __biz 是用户和公众号之间的唯一id，uin是用户的id，这个是不变的，key 是请求的秘钥，一段时间就会失效，offset 是偏移量，count 是每次请求的条数，返回值结构如下：<br><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">&#123;</span><br><span class="line">	<span class="string">"ret"</span>: <span class="number">0</span>,</span><br><span class="line">	<span class="string">"errmsg"</span>: <span class="string">"ok"</span>,</span><br><span class="line">	<span class="string">"msg_count"</span>: <span class="number">10</span>,信息条数</span><br><span class="line">	<span class="string">"can_msg_continue"</span>: <span class="number">1</span>,是否还可以继续获取，<span class="number">1</span>代表可以。<span class="number">0</span>代表不可以，也就是最后一页</span><br><span class="line">	<span class="string">"general_msg_list"</span>: <span class="string">"&#123;\"list\":[&#123;\"comm_msg_info\":&#123;\"id\":1000000182,\"type\":49,\"datetime\":1585702800,\"fakeid\":\"2398234112\",\"status\":2,\"content\":\"\"&#125;,\"app_msg_ext_info\":&#123;\"title\":\"张国荣音乐\/演唱会\/电影全集网盘分享\",\"digest\":\"#17宠爱张国荣#\",\"content\":\"\",\"fileid\":0,\"content_url\":\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5ODIzNDExMg==&amp;amp;mid=2257484715&amp;amp;idx=1&amp;amp;sn=2fab0a11d62090d5e30e03e334bce636&amp;amp;chksm=a5b70ac492c083d275b6e15f0de85b8baf488ebb76e5429b08f40cdc53ab6e27b0ce5474fb30&amp;amp;scene=27#wechat_redirect\",\"source_url\":\"\",\"cover\":\"http:\/\/mmbiz.qpic.cn\/mmbiz_jpg\/pchiblEh3tErdgYu06FFVuvnKr9aAkddJLB7pgNhaiav0aYGQKJI0Dwn0kpT4wnmQkIglGH1Nciam5IThX19ibyEag\/0?wx_fmt=jpeg\",\"subtype\":9,\"is_multi\":0,\"multi_app_msg_item_list\":[],\"author\":\"苏生\",\"copyright_stat\":100,\"duration\":0,\"del_flag\":1,\"item_show_type\":0,\"audio_fileid\":0,\"play_url\":\"\",\"malicious_title_reason_id\":0,\"malicious_content_type\":0&#125;&#125;]&#125;"</span>, </span><br><span class="line">	<span class="string">"next_offset"</span>: <span class="number">37</span>,</span><br><span class="line">	<span class="string">"video_count"</span>: <span class="number">1</span>,</span><br><span class="line">	<span class="string">"use_video_tab"</span>: <span class="number">1</span>,</span><br><span class="line">	<span class="string">"real_type"</span>: <span class="number">0</span>,</span><br><span class="line">	<span class="string">"home_page_list"</span>: []</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<p>可以看到返回数据包括文章标题titile、摘要digest、文章地址content_url、阅读原文地址source_url、封面图cover、作者author ，只要抓取这些有用的数据就行了。</p>
<h3 id="python-抓取公众号文章"><a href="#python-抓取公众号文章" class="headerlink" title="python 抓取公众号文章"></a>python 抓取公众号文章</h3><p>上面分析了接口参数和返回数据，开始用Python请求微信接口就是了。</p>
<figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">import</span> requests,pdfkit,json,time,datetime,os</span><br><span class="line">biz = 'MzU1OTgyMzQzNw=='#随公众号改变</span><br><span class="line">uin = 'NjQ3OTQwMT'#不变</span><br><span class="line">key = <span class="string">'54ce6b15dc70fa9428deb6f18a00ac92db141f743dfe6d5a800bf2e99d82c2c372af771b204ec1db1f6f769ab66ad7c0294db04862aecbd043c24ab4be675cf55bcb2316b384f5612fb8a73daee911389bf94d6ed0fae9285e5996b831da8ea9f1af341f0314a937fd4c840edc1986fc74961857388588e83567137c42993a80'</span></span><br><span class="line">def parse(offset, biz, uin, key):</span><br><span class="line">    # url前缀</span><br><span class="line">    url = <span class="string">"https://mp.weixin.qq.com/mp/profile_ext"</span></span><br><span class="line">    # 请求头</span><br><span class="line">    headers = &#123;</span><br><span class="line">        <span class="string">"User-Agent"</span>: <span class="string">"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36 QBCore/4.0.1301.400 QQBrowser/9.0.2524.400 Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2875.116 Safari/537.36 NetType/WIFI MicroMessenger/7.0.5 WindowsWechat"</span></span><br><span class="line">    &#125;</span><br><span class="line">    proxies = &#123;</span><br><span class="line">        <span class="string">'https'</span>: None,</span><br><span class="line">        <span class="string">'http'</span>: None,</span><br><span class="line">    &#125;</span><br><span class="line">    # 重要参数https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&amp;__biz=MjM5ODIzNDExMg==&amp;f=json&amp;offset=48&amp;count=10&amp;is_ok=1&amp;scene=124&amp;uin=MTU0MTQzNjQwMw%3D%3D&amp;key=a42654d5f06828b5d9e40deca0ea5f73004fecbf9ae4cfe0d37653465b623e26d82d0948a73d3cdf4fffd5df19bebafed06815f22f05bac0e5679625c86bb429885529cea1973bfb4d9f18481e624a0cea7cd12932fb55e7ed892ccd6dcda141737cf5ed9811d477cd90cdf4d8371a8b1bdd63de15e193787fc75f186cdf41b5&amp;pass_ticket=FjDlSKDCqgdl0E5WNMPJLuBO3eeqP%2FdrlM1Q8%2FzEHxisVbm7ZVemLp6VeXsrLd0i&amp;wxtoken=&amp;appmsg_token=1074_NFjOFA%252FiWPMoGcRLiG7SzMUc-NoJp7QhKSYmYw~~&amp;x5=0&amp;f=json</span><br><span class="line">    param = &#123;</span><br><span class="line">        <span class="string">'action'</span>: <span class="string">'getmsg'</span>,</span><br><span class="line">        <span class="string">'__biz'</span>: biz,</span><br><span class="line">        <span class="string">'f'</span>: <span class="string">'json'</span>,</span><br><span class="line">        <span class="string">'offset'</span>: offset,</span><br><span class="line">        <span class="string">'count'</span>: <span class="string">'10'</span>,</span><br><span class="line">        <span class="string">'is_ok'</span>: <span class="string">'1'</span>,</span><br><span class="line">        <span class="string">'scene'</span>: <span class="string">'124'</span>,</span><br><span class="line">        <span class="string">'uin'</span>: uin,</span><br><span class="line">        <span class="string">'key'</span>: key,</span><br><span class="line">        <span class="string">'wxtoken'</span>: <span class="string">''</span>,</span><br><span class="line">        <span class="string">'x5'</span>: <span class="string">'0'</span>,</span><br><span class="line">    &#125;</span><br><span class="line">    # 发送请求，获取响应</span><br><span class="line">    response = requests.get(url, headers=headers, params=param, proxies=proxies)</span><br><span class="line">    response_dict = response.json()</span><br><span class="line">    print(response_dict)</span><br><span class="line">    next_offset = response_dict[<span class="string">'next_offset'</span>]</span><br><span class="line">    can_msg_continue = response_dict[<span class="string">'can_msg_continue'</span>]</span><br><span class="line">    general_msg_list = response_dict[<span class="string">'general_msg_list'</span>]</span><br><span class="line">    data_list = json.loads(general_msg_list)[<span class="string">'list'</span>]</span><br><span class="line">    htmls = []</span><br><span class="line">    # print(data_list)</span><br><span class="line">    <span class="keyword">for</span> data <span class="keyword">in</span> data_list:</span><br><span class="line">        <span class="keyword">try</span>:</span><br><span class="line">            # 文章发布时间</span><br><span class="line">            date = time.strftime(<span class="string">'%Y-%m-%d'</span>, time.localtime(data[<span class="string">'comm_msg_info'</span>][<span class="string">'datetime'</span>]))</span><br><span class="line">            msg_info = data[<span class="string">'app_msg_ext_info'</span>]</span><br><span class="line">            #原创</span><br><span class="line">            <span class="keyword">if</span> msg_info[<span class="string">'copyright_stat'</span>] == <span class="number">11</span>:</span><br><span class="line">                # 文章标题</span><br><span class="line">                title = msg_info[<span class="string">'title'</span>]</span><br><span class="line">                # 文章链接</span><br><span class="line">                url = msg_info[<span class="string">'content_url'</span>]</span><br><span class="line">                #文章摘要digest</span><br><span class="line">                #文章封面cover</span><br><span class="line"></span><br><span class="line">                res = requests.get(url,proxies=&#123;<span class="string">'http'</span>: None,<span class="string">'https'</span>: None&#125;,verify=False, headers=headers)</span><br><span class="line">                content = res.text.replace(<span class="string">'data-src'</span>, <span class="string">'src'</span>)</span><br><span class="line">                filename=str(int(time.time()))+<span class="string">'.html'</span></span><br><span class="line">                #生成HTML文件</span><br><span class="line">                #htmls.append(filename)</span><br><span class="line">                <span class="keyword">with</span> open(date+<span class="string">'_'</span>+title+<span class="string">'.html'</span>, <span class="string">'w'</span>, encoding=<span class="string">'utf-8'</span>) <span class="keyword">as</span> f:</span><br><span class="line">                    f.write(content)</span><br><span class="line">                #生成Excel</span><br><span class="line">                #with open('wechat2.csv', 'a+', encoding='gbk') as f:</span><br><span class="line">                #    f.write(title.replace(',', '，')+','+msg_info['digest'].replace(',', '，')+',' + msg_info['cover'].replace(',', '，') + ',' +url.replace(',', '，')+','+str(date)+ '\n')</span><br><span class="line">                #生成markdown</span><br><span class="line">                #with open('wechat.md', 'a+', encoding='utf-8') as f:</span><br><span class="line">                #    f.write('[&#123;&#125;]'.format(title) + '(&#123;&#125;)'.format(url)+ '\n')</span><br><span class="line">                #生成PDF</span><br><span class="line">                #try:</span><br><span class="line">                #    pdfkit.from_string(content,'./' + date + '_' + title.replace(' ', '')+'.pdf')</span><br><span class="line">                #except Exception as err:</span><br><span class="line">                #    print(err)</span><br><span class="line">                # 部分文章标题含特殊字符，不能作为文件名</span><br><span class="line">                    #f = datetime.datetime.now().strftime('%Y%m%d%H%M%S') + '.pdf'</span><br><span class="line">                    #pdfkit.from_string(content,f)</span><br><span class="line">                    # 自己定义存储路径（绝对路径）</span><br><span class="line">                #finally:</span><br><span class="line">                #    os.remove(filename)</span><br><span class="line">                #pdfkit.from_url(url, './' + date + title + '.pdf') #图片获取不到</span><br><span class="line">                print(url + title + date + <span class="string">'成功'</span>)</span><br><span class="line">        except Exception <span class="keyword">as</span> err:</span><br><span class="line">            print(err)</span><br><span class="line">    #try:</span><br><span class="line">        #pdfkit.from_file(htmls,'公众号文章备份.pdf')</span><br><span class="line">    #except:</span><br><span class="line">    #    pass</span><br><span class="line">    <span class="keyword">if</span> can_msg_continue == <span class="number">1</span>:</span><br><span class="line">        time.sleep(<span class="number">1</span>)</span><br><span class="line">        parse(next_offset,biz,uin,key)</span><br><span class="line">        <span class="keyword">return</span> True</span><br><span class="line">    <span class="keyword">else</span>:</span><br><span class="line">        print(<span class="string">'爬取完毕'</span>)</span><br><span class="line">        <span class="keyword">return</span> False</span><br><span class="line"></span><br><span class="line">parse(<span class="number">0</span>,biz,uin,key)</span><br></pre></td></tr></table></figure>
<p><img src="https://upload-images.jianshu.io/upload_images/23152173-834294997521f48b.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>这里只抓取原创文章，我的公众号有160多篇原创，生成HTML文件2分钟就搞定。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-f3e04f4805eba9df.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>用谷歌浏览器打开就能看。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-54e029f1ac7012e3.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>生成的HTML文件还可以转成chm格式，需要先安装软件 Easy CHM，这是一款强大的CHM电子书或CHM帮助文件的快速制作工具 <a href="http://www.etextwizard.com/cn/easychm.html" target="_blank" rel="noopener">http://www.etextwizard.com/cn/easychm.html</a><br><img src="https://upload-images.jianshu.io/upload_images/23152173-6cdab3313db44bdb.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>左侧是文章标题，右侧是文章内容，看起来非常方便。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-2fac2bea9b8e365e.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>然后编译成一个chm文件，这样直接双击文件就能打开浏览了。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-0b0b6f20624f493a.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p><img src="https://upload-images.jianshu.io/upload_images/23152173-805d067031574009.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>还有含有文章标题和链接的 markdown  文件，关于markdown之前文章介绍过 <a href="https://mp.weixin.qq.com/s/K5-1y2RRcgAu9sRsxKfZpQ" target="_blank" rel="noopener">用 Markdown 来写简历和 PPT</a>。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-151a8b5944557392.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>excel文件格式也有。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-5b734bbb2713b8a6.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>生成HTML，markdown和Excel都比较快，因为都是文本，下面开始导出PDF。</p>
<h3 id="导出PDF"><a href="#导出PDF" class="headerlink" title="导出PDF"></a>导出PDF</h3><p>导出PDF用的工具是wkhtmltopdf  ，先到官网<a href="https://wkhtmltopdf.org/downloads.html" target="_blank" rel="noopener">https://wkhtmltopdf.org/downloads.html</a>  下载安装 wkhtmltopdf ， 安装后设置环境变量，之前文章写过 <a href="https://mp.weixin.qq.com/s/y7Xo1BtiGwuij9-ILRWxZg" target="_blank" rel="noopener">那些你可能不知道的 windows 奇技淫巧</a>，然后直接命令行就能生成PDF。<br><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">λ wkhtmltopdf http:<span class="comment">//www.baidu.com baidu.pdf</span></span><br><span class="line">Loading pages (<span class="number">1</span>/<span class="number">6</span>)</span><br><span class="line">Counting pages (<span class="number">2</span>/<span class="number">6</span>)</span><br><span class="line">Resolving links (<span class="number">4</span>/<span class="number">6</span>)</span><br><span class="line">Loading headers and footers (<span class="number">5</span>/<span class="number">6</span>)</span><br><span class="line">Printing pages (<span class="number">6</span>/<span class="number">6</span>)</span><br><span class="line">Done</span><br></pre></td></tr></table></figure></p>
<p>比如生成百度首页的PDF。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-91e5fef1f6c2e0a4.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>Python中使用pdfkit 模块来调用wkhtmltopdf ，先用<code>pip install pdfkit -i http://pypi.douban.com/simple --trusted-host pypi.douban.com</code>来安装它。</p>
<p>再次运行程序，PDF文件也生成了。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-cf04c0093d228441.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"><br>PDF也可以用谷歌浏览器打开，比如这篇<a href="https://mp.weixin.qq.com/s/BSfjFnv54EAHmc6eE75T9g" target="_blank" rel="noopener">一键解锁网易云音乐变灰歌曲</a>。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-8972ab3cade2c4ab.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>不过由于生成PDF比较慢，文章多的话key参数会失效，需要重新获取，然后修改next_offset继续抓取。<br><code>{&#39;base_resp&#39;: {&#39;ret&#39;: -3, &#39;errmsg&#39;: &#39;no session&#39;, &#39;cookie_count&#39;: 0, &#39;csp_nonce&#39;: 406210942}, &#39;ret&#39;: -3, &#39;errmsg&#39;: &#39;no session&#39;, &#39;cookie_count&#39;: 0}</code><br><img src="https://upload-images.jianshu.io/upload_images/23152173-6a7bef5d7bd73ffe.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>这样就完美的把我公众号的所有文章下载到本地了，有HTML，PDF，Excel，markdown，chm 格式（在公众号后台回复 <code>公众号</code> 获取我的所有原创文章，如果你有想下载的公众号可以加我微信免费帮忙下载）。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-fe2c352b8ee985cf.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="风.png"></p>
<p>目前有个问题是如果公众号有付费文章，下载的也只能看一部分内容。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-5f060dc53c637f43.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<p>还有文章的评论也是有接口获取的，有空再研究下。<br><img src="https://upload-images.jianshu.io/upload_images/23152173-5633948d4f0ecb4a.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" alt="image.png"></p>
<blockquote>
<p>大家的点赞和在看转发对我非常重要，如果文章对你有帮助还请支持下， 感谢各位！</p>
</blockquote>
<table>
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      var $localSearchInput = $('#local-search-input');
      $localSearchInput.attr("autocapitalize", "none");
      $localSearchInput.attr("autocorrect", "off");
      $localSearchInput.focus();
    }

    // search function;
    var searchFunc = function(path, search_id, content_id) {
      'use strict';

      // start loading animation
      $("body")
        .append('<div class="search-popup-overlay local-search-pop-overlay">' +
          '<div id="search-loading-icon">' +
          '<i class="fa fa-spinner fa-pulse fa-5x fa-fw"></i>' +
          '</div>' +
          '</div>')
        .css('overflow', 'hidden');
      $("#search-loading-icon").css('margin', '20% auto 0 auto').css('text-align', 'center');

      $.ajax({
        url: path,
        dataType: isXml ? "xml" : "json",
        async: true,
        success: function(res) {
          // get the contents from search data
          isfetched = true;
          $('.popup').detach().appendTo('.header-inner');
          var datas = isXml ? $("entry", res).map(function() {
            return {
              title: $("title", this).text(),
              content: $("content",this).text(),
              url: $("url" , this).text()
            };
          }).get() : res;
          var input = document.getElementById(search_id);
          var resultContent = document.getElementById(content_id);
          var inputEventFunction = function() {
            var searchText = input.value.trim().toLowerCase();
            var keywords = searchText.split(/[\s\-]+/);
            if (keywords.length > 1) {
              keywords.push(searchText);
            }
            var resultItems = [];
            if (searchText.length > 0) {
              // perform local searching
              datas.forEach(function(data) {
                var isMatch = false;
                var hitCount = 0;
                var searchTextCount = 0;
                var title = data.title.trim();
                var titleInLowerCase = title.toLowerCase();
                var content = data.content.trim().replace(/<[^>]+>/g,"");
                var contentInLowerCase = content.toLowerCase();
                var articleUrl = decodeURIComponent(data.url);
                var indexOfTitle = [];
                var indexOfContent = [];
                // only match articles with not empty titles
                if(title != '') {
                  keywords.forEach(function(keyword) {
                    function getIndexByWord(word, text, caseSensitive) {
                      var wordLen = word.length;
                      if (wordLen === 0) {
                        return [];
                      }
                      var startPosition = 0, position = [], index = [];
                      if (!caseSensitive) {
                        text = text.toLowerCase();
                        word = word.toLowerCase();
                      }
                      while ((position = text.indexOf(word, startPosition)) > -1) {
                        index.push({position: position, word: word});
                        startPosition = position + wordLen;
                      }
                      return index;
                    }

                    indexOfTitle = indexOfTitle.concat(getIndexByWord(keyword, titleInLowerCase, false));
                    indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
                  });
                  if (indexOfTitle.length > 0 || indexOfContent.length > 0) {
                    isMatch = true;
                    hitCount = indexOfTitle.length + indexOfContent.length;
                  }
                }

                // show search results

                if (isMatch) {
                  // sort index by position of keyword

                  [indexOfTitle, indexOfContent].forEach(function (index) {
                    index.sort(function (itemLeft, itemRight) {
                      if (itemRight.position !== itemLeft.position) {
                        return itemRight.position - itemLeft.position;
                      } else {
                        return itemLeft.word.length - itemRight.word.length;
                      }
                    });
                  });

                  // merge hits into slices

                  function mergeIntoSlice(text, start, end, index) {
                    var item = index[index.length - 1];
                    var position = item.position;
                    var word = item.word;
                    var hits = [];
                    var searchTextCountInSlice = 0;
                    while (position + word.length <= end && index.length != 0) {
                      if (word === searchText) {
                        searchTextCountInSlice++;
                      }
                      hits.push({position: position, length: word.length});
                      var wordEnd = position + word.length;

                      // move to next position of hit

                      index.pop();
                      while (index.length != 0) {
                        item = index[index.length - 1];
                        position = item.position;
                        word = item.word;
                        if (wordEnd > position) {
                          index.pop();
                        } else {
                          break;
                        }
                      }
                    }
                    searchTextCount += searchTextCountInSlice;
                    return {
                      hits: hits,
                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  

  

  
  

  

  

  

  
<script>
  ((window.gitter = {}).chat = {}).options = {
    //room替换成自己的聊天室名称即可，room的名称规则是：username/roomname
    room: 'sushengbuhuo-chat/mychat'
  };
</script>
<script src="https://sidecar.gitter.im/dist/sidecar.v1.js" async defer></script>

</body>
</html>
